Set e-mail reminders from the Linux command line
You don’t need a fancy e-mail client with calendar capabilities to get a quick reminder. This is especially useful if you’re on a SSH prompt and don’t have a post-it neatby 
echo “mail -s ‘remember the birthday party’ your_email@server.com < /dev/null” | at 15:19
This will send you an e-mail to the address you specified at precisely 15:19.
